no, it's available on the workshop and is a requirement for all my leader mods.
this will be what was causing all your issues. sorry if it wasn't clear enough: the mods should be linked on steam.
get it here: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3506937618

I don't have Izica's Leader Model Changer - is that only available through CivMods?

game-affecting mods like new leaders aren't compatible with save games that don't use the mod.
only reason you wouldn't be able to enable/disable mods is if there are dependencies. do you have izica's leader model changer?
are you sure there isn't another mod you have forgotten to re-install that could be preventing loading an old save? even if it doesnt tell you which you're missing, when viewing the save game in the 'load game' menu, it should give you a list of additional content you had enabled. comb through that.

I have issues installing any of your leaders (though your civs work fine). If I install a leader though, suddenly I can't enable/disable any other mods, if I save a modded game I can no longer load it, but the material does seem to show up in game correctly when I'm playing it - it's just the save that is corrupted. When loading the save, it tells me that I'm missing mods, though doesn't specify which ones.

the da vinci civics vary by age! the things you unlock are based on da vinci's inventions, but have stats that fit the era you're in.
they stretch plausibility in places, but all leader abilities do (in what sense did isabella make natural wonders better?) - and for example a steam cannon was also designed by archimedes!
one day maybe i'll give the units aesthetics more appropriate for the era, but for now we can only use existing models from the game, so the only option is to use the exploration age models as-is for the prototype units.

A really great mod, but the fact that we can do the "leonardo da vinci civics" in the antiquity isn't realistic or fun.

It makes Civ VII feel like Civ again!!!!

Thank You

Fixed the problem, the issue was the mod that reassigns favored civs for leaders-- that was trying to reference the Himiko and Ashoka personas that I don't have.

hi! noone else has had this issue. the mementos cause foreign key reports to appear in the database log, but these do not prevent the game from starting.
what other mods are you running, and what other errors are appearing in the database log?

Your leader mods, while neat in concept, render it impossible to start/load games and cause a foreign key constraint failure to be displayed in the database log.